Sensory Nerve Fiber

Sensory Nerve Fiber

 

a process of a nerve cell (axon), along with its membrane, that conducts excitation from the exteroreceptors and interoreceptors to the central nervous system. Sensory nerve fibers are divided into several groups according to their diameter. For example, among different afferent fibers of muscles, groups 1 to 4 are distinguished. The thickest fibers in the organism (about 20 micrometers with a rate of conduction of about 120 m/sec) belong to group la and terminate in muscle receptors called primary muscle spindle endings. In the specialized literature, sensory nerve fibers are also called afferent nerve fibers (seeAFFERENT NERVE FIBER).

References in periodicals archive ?
The cornea is the most densely innervated tissue in the body, so corneal nerve assessment is extremely sensitive for detecting small sensory nerve fiber damage as compared to other tests including measurement of intra-epidermal nerve fibers in the skin, notes lead investigator Joseph L.
At age 15 weeks, rats were weighed, blood samples for glucose measurements were taken from the tail vein, and assessment of motor and sensory nerve conduction velocities (MNCVs and SNCVs, respectively) and small sensory nerve fiber function was performed.
To reduce spasticity, the neurosurgeon will cut some of the tiny rootlets that make up each sensory nerve fiber.
Metanx([R]), a medical food, alleviated diabetes-associated sensory nerve conduction velocity deficit and small sensory nerve fiber neuropathy, and, unlike many other experimental therapeutics tested thus far, induced small sensory fiber regeneration, potentially due to correction of oxidative stress.
The surgery would involve cutting some of the sensory nerve fibers that come from the muscles and enter the spinal cord, including the potential removal of several vertebrae.
The results show that the transplanted stem cells act as a "bridge" which allows injured sensory nerve fibers to grow into the spinal cord, rebuild functional nerve connections, and thereby achieve long term restoration of major parts of the lost sensory functions.
Herpes zoster is a common disease of the dorsal root ganglia and sensory nerve fibers clinically characterized by unilateral painful vesicular eruption of the skin in a dermatomal distribution.
4 Percent of cases the inferior alveolar nerve presents two or even three trajectories through accessory foramina con- taining small sensory nerve fibers.
After injury, the sensory nerve fibers in the spinal cord are damaged and dysfunctional, causing incorrect signals to be transmitted to pain centers in the brain.
At the same time, sensory nerve fibers of the vagus leading from the larynx and outer ear of the speaker/singer carry the same impulse to his or her own precognitive brain areas.
The ablation was performed as close to the posterior aspect of the cervix as possible and continued for a minimum of 1 cm posterolaterally on either side with the intended aim of destroying the sensory nerve fibers and the secondary ganglia as they left the uterus and lie within the uterosacral ligaments," Ms.